All Questions
Tagged with obfuscation encryption
16 questions
2
votes
1
answer
470
views
Best way to protect source code of exe that being loaded by Assembly.Load method
I am protecting an exe that being loaded by Assembly.Load... This makes everything difficult because most obfuscators causing it to not work properly or not load at all. I used confuserEx Ameteurz ...
- 21
2
votes
0
answers
100
views
Trying to replicate encryption of an android app
I was trying to replicate/copy the encryption of an android app which uses CryptoJS with sha256 encryption as having seen in the source code of the android app. fingerprinting the app, it was built ...
- 309
0
votes
0
answers
142
views
How to call strongly encrypted DLL from Resources?
There is a program. This program accepts plugins. Plugins written with C#. I have to encrypt it. But when I use strong obfuscators I have exception. Program doesn't read. How can I fix that ? How can ...
- 1
1
vote
1
answer
411
views
Python self decryption script, as mean of obfuscation
I have a software with an embedded python interpreter. The software can open upon startup a given .py script and execute it. Let's assume that in my python environment I can't open other files, and I ...
- 1,858
2
votes
0
answers
51
views
Possibly infected image
Long story short I'v downloaded a template for my website and instead of images it has the .html files included, and at the beginning those html files do include PNG IHDR , and they are being loaded ...
0
votes
2
answers
2k
views
Android App's hardcoded local keystore password r3versing
Novice Android security researcher here. Recently I was tasked with the task/challenge of exposing a certain app's hardcoded local keystore password.
I've decompiled it with JEB2 and obviously within ...
- 3
2
votes
1
answer
94
views
Unkown Swap Encoding
I'm trying to figure out this encoding in malware.. All I have are the static strings..
I was able to figure one out so there is plaintext on one:
e-snAetgrU$
translates to
$User-Agent
Here are ...
- 123
5
votes
1
answer
2k
views
Obfuscated AES decryption assembly
I have recently been sifting my way through a whole load of assembly to try to identify how a program is decrypting some data. Thus far I have identified how the IV is extracted, that the IV is 16 ...
- 109
11
votes
2
answers
3k
views
Protect data stored in binary
Let's say I've some function(i.e. hash function), that generates value from input seed and some precomputed hash values, that are stored somewhere in binary. What are the possible approaches for:
...
- 823
4
votes
2
answers
1k
views
finding a RC4 Encryption function in obfuscated assembly code with no symbols
RC4 encryption is quite basic and its Pseudo random generation algorithm is given at Wikipedia
When Looking for a hashing algorithm like MD5 or SHAx it is pretty simple to look for the Hashing ...
- 668
4
votes
0
answers
3k
views
Well-known JSON obfuscator that puts the string "Salted12" in front of obfuscated files?
I have an application that pulls some JSON definition files from the internet. In former versions of the application, these files were genuine json files; now, in a later version, they seem to be ...
- 13k
10
votes
4
answers
17k
views
AirPlay Mirroring decryption (FairPlay)
I've been spending a good chunk of time looking at some 3rd party applications that were successful in "reproducing" (although I believe not necessarily by understanding the algorithm completely but ...
- 346
7
votes
2
answers
4k
views
Retrieving encryption/encoding logic from dll
I am trying to retrieve a decrypting/deconing logic from a program. Unfortunately I have virtually no experiencing in reverse engineering.
I am building an alternative controller application for a ...
- 171
9
votes
2
answers
2k
views
What is this 'mathematical jigsaw puzzles' obfuscation?
You must have heard about it, it all over the on-line newspapers. Some researchers from UCLA claims to have achieved a breakthrough in software obfuscation through 'mathematical jigsaw puzzles'.
...
- 19.2k
64
votes
6
answers
33k
views
Where to find (free) training in reverse engineering? [closed]
Can someone give a list of websites with good (and free) reverse engineering training exercises ?
- 19.2k
11
votes
3
answers
576
views
Usage of FHE in obfuscation?
FHE (Fully Homomorphic Encryption) is a cryptographic encryption schema in which it is possible to perform arithmetic operations on the ciphered text without deciphering it.
Though there is no really ...
- 19.2k